Finding the Fourth Proportional to 934,837.50, 1,401,149.06 and 428,972.09
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Solution
The fourth proportional to 934,837.50, 1,401,149.06 and 428,972.09 is: 642,950.07
Step by Step Solution
- Step 1: Write the proportion equation
934,837.50 : 1,401,149.06 = 428,972.09 : x - Step 2: Convert to fraction form
934,837.50/1,401,149.06 = 428,972.09/x - Step 3: Cross multiply
934,837.50x = 1,401,149.06 × 428,972.09 - Step 4: Simplify right side
934,837.50x = 601,053,831,519.13 - Step 5: Solve for x
x = 601,053,831,519.13/934,837.50 - Step 6: Final answer
x = 642,950.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.